Knitting-machine.



R. W. SGOTT.

KNITTING MACHINE.

APPLICATION rxnnn mm as, 1911. 1,063,743.

7 Patented June 3,1913

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NEY

LNVENTOR ROBERT w. 5

BY Hls ATTOR WITNESSES MBM 5&4; 540mb R. W. S GOTT.

KNITTING MACHINE.

APPLICATION FILED J-UNB 2B, 1911.

Patented June 3,1913.

2 SHEETS-SHEET 2.

H Q (\g is WITNESSES 'NVENTOR U2: ROBERT w. SCOTT k BY HIS ATTORNEY UNITED stra ns PATENT OFFICE. j

I ROBERT W. SCOTT, OF LEEDS POINT, NEW JERSEY, ASSIGNOR TO SCOTT & WILLIAMS,

INCORPORATED, OF- CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

KNITTING-MACHINE.

Specification of Letters Patent. I

l fatented J mac 3, 1913.

Application filed June 28, 1911. Sorta), No. 635,?80.

To all whom it may concern:

Be it known that I, RosnnrW. SCOTT, a Citizen of the United States, residing at Leeds Point, Atlantic county, New Jersey, have invented certain Improvements in Knitting-hlachines, of which the following is a specification.

My invention consists of acertain improvement in the knitting machine form-' 'machine of the-type to which my invention relates toillustrate the said invention; Fig. 2 is a view showing, as developed in a flat plane, two sets of needle-actuating cams such as would be emplo ed in the cam ring of an ordinary circular atch needle knitting machine intended for the production of my improved fabric; Fig. 3 is an inverted View 4 of part of the cam cap for operating the jacks of the jack ring or dial which is employed in connection with the needle cylinder of the machine; Fig. 4 is a view similar to Fig. 1, but illustrating a modification of my invention, and Fig. 5 isa plan View illustrating another modification of the same.

throughout the machine, the needles of one set having their butts so disposed that they were actuated independently of the needles of the other set at each yarn feed, two sets of noodle-actiiatiug cams being employed, one for each set of needles. In said machine the draft cams were so disposed that at one feed the needles of one set were caused to knock over their stitches in advance of the knocking over of tho-stitches by the precediug needles of the other set with the result that the forcing of the loops over the inclined planes formed by the closed latches o f said preceding needles caused such a strain upon the stitches which had been knocked over on the following needles that the latter stitches were robbed of yarn and drawn tight, there being nothing to preventthis action owing to'the fact that the stitches Were free from the control of the needles and from all other restraining influences. At a succeeding feed the conditions were reversed, the needles of the set which at the preceding teed drew longv stitches, being now the first to knock over and consequently producing the shorter stitches.

In practice I have found that it'is not sutiicient to depend u on the inclination of the latches of the nee ice to cause the tight- 4 .ening of the previously knocked over stitches, for if the hook of a needle is made sufliciently large to impose the necessary strain, it then becomes difficult to knock the preceding or short stitch over the enlarged book, so that while the needle with the enlarged hook serves to assist the tightening of the stitch previously knocked over, the object is defeated to a certain extent by the fact that the stitch is knocked over with difliculty and hence there is dan er of the full strain being imposedbefore tie precediug stitch leaves its needle. i

lvlanii'estly, the smaller the hook of th needle the easier ,the stitches are knocked displacing the hooked endof-the preceding needle in order to impart the desired abnormal strainto the stitch which is formed upon said needle. r

In Fig.2 of the drawing, 1 represents the draft. cam for one set of needles, in this case the short nccdles agnud 2 the draft cam for the other set or long needles y at one feed, the character of these cams being'reversed at the second feed where the cam 1 acts on the long needles y'and the cam 2 on the short needlcs' au, Acting upon the hoolredupper ends of the needles are two sets of jacks 3 and El, which are guided radially in the jack ring or bed 5, the jacks 3 being in line radially with the long needles 1 and the jacks 4 being in line radially with the short needles er, the jacks 3 being acted. upon by cams 6 and 7 and the jacks 4 being acted upon by similar cams J and 10 in a cam ring 11 which surmounts the jack bed or ring 5, and is caused to rotate by connection with the same mechanism which rotates the ring 12 carryingthe needle-actuating cams it and 2 if the machine is one of the stationary cylinder type, or the cam ring beingheld stationary and the jack ring or bed' being caused to rotate with the cylinder if the machine is one or" the rotating cylinder type. At the first feed, therefore, where the short needles knock over in advance of the long needles, said long needles will be displaced radially by the action of the jacks 3 upon theirhooked upper ends so as to stretch or impart" strain to the stitches upon said long needles and thereby cause said stitches to rob the preceding stitches which have been fitnocked over on the short needles and thus contract or shorten said stitches, while at the second feed, where the long needles are first to knock over, the short needles will be acted upon by the jacks 4 with like results upon the stitches upon said short needles.

The needles are acted upon by the usual. encircling spring bands 13 as shown in Fig. 1, so that when the jacks are retracted the needles which have been displaced thereby will be restored to their normal position in the needle cylinder and the knocking over of the stitches upon said displaced needles can thus be easilyl; accomplished, the strain upon the stitches being independent of this knocking over action. The cams which actuate the jacks 3 and 4 are adjustable, as

shown in Fig. 3, so thatthe extent of projection of either set of acks can be readily governed to accord with the desired displacemento'f the needles acted upon thereby, the sired elongation or enlargement of the produced upon said needles, and the consequent contraction or shortening of the stitches previously knocked over upon ad- ;iacent needles.

Various means other than those which I have previously described may be adopted.

the long needles y, these jacks being controlled, respectively, by cams 9 and l0 and by cams ti and 7* carried by the cam ring 12 and being acted upon at their upper ends by a care surface It at the top of the needle cylinder, so that when either jack is raised vertically its upper end will be pushed outward by engagement with this cam surface and will consequently push outward the top portion of the needle behind which thcjack is disposed, the jacks which coiipcrate with the short needles being actuated at one feed and those which coiipera'tc witlrthe long needles being actuated at a succeeding feed, or in stead of using reciprocating jacks may cmploy, at each food, a rotating wheel 15 having projecting hits 16 which act upon alternate. needles so as to radially displace the upper ends of the same, the wheel at one feed being constructed to act upon the short needles only and that at the other food being constructed to act upon the long needles only, as shown in Fig. 5.

I claim:

1.. A knitting machine having two sets of needles alternately disposed, means for knitting upon said needles, means for causing needles of one set to knock over their stitches in advance of preceding needles of the other set, and means for displacing said necediug needles in a direction transverse to that of their reciprocation so as to cause the stitches upon them to draw upon the stitches knocked over by the other needles.

2. A knitting machine having two sets of needles alternately disposed, means for knitting upon said needles, means for causing needles of one set to knock over their stitches in advance of preceding needles of the other set, and reciprocating jacks acting upon said preceding needles so as to cause the stitches upon them to draw upon the stitches knocked over on the other needles.

3. A knitting machine having two sets of needles alternately disposed, means for knitting .upon said needles, means for causing needles of one set to knock over their stitches in advance of preceding needles of the other set, a jack bed having therein reciprocating jacks for acting upon the upper portions of the needles and displacing them from their normal position in the needle cylinder, and a cam carrier having cams for actuating said jacks in alternation.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

' .RGBERT W. SCOTT. I Witnesses Kara A. BnAoLu, HAMni'roN' D. TURN on. 

